building
Build is the present tense of the verb "to build". Built is the past tense of the verb "to build".
The present tense of the verb 'was' is is.
Can is the present tense.
The present tense for the verb "have" is "have" for the pronouns I, you, we, and they, and "has" for the pronouns he, she, and it.
Built is a past tense adjective, "the house is built." Build is a verb "please build me a house."
"Is" is the present tense form of the verb "to be" and "has" is the present tense form of the verb "to have."
Studied is not a present tense verb. It is the past tense of study (present tense).
Present tense.
Washes is the present tense.
* I am * you/we/they are * he/she/it is
The present tense is 'is'
But is not a verb and does not have a present tense.